Zobrazeno 1 - 10
of 233
pro vyhledávání: '"McComas, David"'
Autor:
Livadiotis, George, McComas, David J.
Publikováno v:
Scientific Reports, volume 14, Article number: 22641 (2024)
We introduce the theory of thermodynamic relativity, a unified framework for describing both entropies and velocities, and their respective disciplines of thermodynamics and kinematics, which share a surprisingly identical description with relativity
Externí odkaz:
http://arxiv.org/abs/2410.08242
Autor:
Cranmer, Steven R., Chhiber, Rohit, Gilly, Chris R., Cairns, Iver H., Colaninno, Robin C., McComas, David J., Raouafi, Nour E., Usmanov, Arcadi V., Gibson, Sarah E., DeForest, Craig E.
The solar wind is the extension of the Sun's hot and ionized corona, and it exists in a state of continuous expansion into interplanetary space. The radial distance at which the wind's outflow speed exceeds the phase speed of Alfvenic and fast-mode m
Externí odkaz:
http://arxiv.org/abs/2310.05887
A Ribbon of enhanced energetic neutral atom (ENA) emissions was discovered by the Interstellar Boundary Explorer (IBEX) in 2009, redefining our understanding of the heliosphere boundaries and the physical processes occurring at the interstellar inter
Externí odkaz:
http://arxiv.org/abs/2304.05499
The polytropic behavior of Solar Wind protons as observed by Ulysses spacecraft during Solar minimum
We analyze proton bulk parameters derived from Ulysses observations and investigate the polytropic behavior of solar wind protons over a wide range of heliocentric distances and latitudes. The large-scale variations of the proton density and temperat
Externí odkaz:
http://arxiv.org/abs/2212.14145
Autor:
Livadiotis, George, McComas, David J.
The recently developed concept of "entropic defect" is important for understanding the foundations of thermodynamics in space plasma physics, and more generally, for systems with physical correlations among their particles. Using this concept, this p
Externí odkaz:
http://arxiv.org/abs/2210.05752
Autor:
Swaczyna, Paweł, Schwadron, Nathan A., Möbius, Eberhard, Bzowski, Maciej, Frisch, Priscilla C., Linsky, Jeffrey L., McComas, David J., Rahmanifard, Fatemeh, Redfield, Seth, Winslow, Réka M., Wood, Brian E., Zank, Gary P.
Publikováno v:
ApJL, 937 (2022), L32
On its journey through the Galaxy, the Sun passes through diverse regions of the interstellar medium. High-resolution spectroscopic measurements of interstellar absorption lines in spectra of nearby stars show absorption components from more than a d
Externí odkaz:
http://arxiv.org/abs/2209.09927
Solar wind magnetic fluctuations exhibit anisotropy due to the presence of a mean magnetic field in the form of the Parker spiral. Close to the Sun, direct measurements were not available until the recently launched Parker Solar Probe (PSP) mission.
Externí odkaz:
http://arxiv.org/abs/2110.14756
Autor:
Rankin, Jamie S., McComas, David J., Leske, Richard A., Christian, Eric R., Cohen, Christina M. S., Cummings, Alan C., Joyce, Colin J., Labrador, Allan W., Mewaldt, Richard A., Schwadron, Nathan A., Stone, Edward C., Strauss, R. Du Toit, Wiedenbeck, Mark E.
The Integrated Science Investigation of the Sun instrument suite onboard NASA's Parker Solar Probe mission continues to measure solar energetic particles and cosmic rays closer to the Sun than ever before. Here, we present the first observations of c
Externí odkaz:
http://arxiv.org/abs/2110.03601
Autor:
Jones, Geraint H., Elliott, Heather A., McComas, David J., Hill, Matthew E., Vandegriff, Jon, Smith, Edward J., Crary, Frank J., Waite, J. Hunter
During March-April 2002, while between the orbits of Jupiter and Saturn, the Cassini spacecraft detected a significant enhancement in pickup proton flux. The most likely explanation for this enhancement was the addition of protons to the solar wind b
Externí odkaz:
http://arxiv.org/abs/2006.00500
Publikováno v:
The Astrophysical Journal, 883:101, 2019
In mid-2012, a GMIR observed by Voyager 2 crossed through the heliosheath and collided with the heliopause, generating a pressure pulse that propagated into the very local interstellar medium. The effects of the transmitted wave were seen by Voyager
Externí odkaz:
http://arxiv.org/abs/1910.00676